Great Mills, MD - Home Safety Score unavailable
1 ZIP code · 3 water systems · Updated
Data: EPA SDWIS
Great Mills Water: The Quick Version
- Your city's water systems recorded 9 violations in the past 5 years.
- Homes built before 1986: 22% - older plumbing may contain lead solder.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 12.51 - above typical levels.
Water Systems Serving Great Mills
Great Mills, MD is covered by 3 major water utilities out of 3 federally tracked systems, each managing its own pipes, treatment processes, and EPA filings. What a household gets from the tap depends on which provider's system serves that address.
Overview
We track home safety data for 1 ZIP code in Great Mills, Maryland (population ~6,976), covering 3 community water systems serving approximately 44,637 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 1 health-based violation appear in the available health breakdown.
Water Sources
Great Mills water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0000 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 6 | 1 |
| Stage 2 DBP Rule | Treatment Technique | 6 | 1 |
| Lead | Inorganic | 4 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 20634 | — | 9 | 1 | Lexington Park |
All ZIP Codes in Great Mills
- 20634 - 9 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
CDC Health Data for Great Mills
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Great Mills
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Great Mills's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Although a small portion of Great Mills's homes predate 1986, the median build year of 1994 indicates the majority of the city's residential plumbing was installed after lead solder was banned - which tends to reduce the plumbing-related component of lead exposure at the household level.
Most homes in Great Mills were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Great Mills: Remediation Cost in Perspective
In Great Mills, property wealth outpaces what documented remediation typically demands - the equity burden lands well within the low tier.
Remediation costs in Great Mills are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 22% below the Maryland average.
Protecting Children from Lead in Great Mills
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Whenever aggregate samples pass the federal action benchmark and pre-rule housing - 22% in Great Mills - represents a smaller fraction, lead occupies a lower priority on the local picture.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Great Mills
Historical NFIP data for Great Mills contains 30 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $25,681. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$1,600</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
Deep Dive Reports
Detailed analysis for Great Mills, MD